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<head><meta charset="utf-8"><title>ICE Fixes #77720 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html">ICE Fixes #77720</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213464992" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213464992">(Oct 15 2020 at 18:04)</a>:</h4>
<p>So <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> I read through <a href="https://github.com/rust-lang/rust/issues/77720">#77720</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213465002" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213465002">(Oct 15 2020 at 18:04)</a>:</h4>
<p>I believe you mentioned having concerns</p>



<a name="213465014"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213465014" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213465014">(Oct 15 2020 at 18:04)</a>:</h4>
<p>Presumably related to the priority hacks</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213466313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213466313">(Oct 15 2020 at 18:15)</a>:</h4>
<p>yes. And more generally how cycles are handled in trait solving at the moment.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213466447" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213466447">(Oct 15 2020 at 18:16)</a>:</h4>
<p>This fixme is relevant: <a href="https://github.com/rust-lang/rust/blob/b8d2560dca40edf5584c8e23b81c3e89d19d68dc/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs#L51">https://github.com/rust-lang/rust/blob/b8d2560dca40edf5584c8e23b81c3e89d19d68dc/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs#L51</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/ICE%20Fixes%20%2377720/near/213466564" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/ICE.20Fixes.20.2377720.html#213466564">(Oct 15 2020 at 18:17)</a>:</h4>
<p>This also applies to caching projection results.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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